<div>
  <h1>登录</h1>
  <h2>{{message}}</h2>
  <form nz-form [formGroup]="validateForm" method="post" class="login-form" (ngSubmit)="login()">
    <nz-form-item>
      <nz-form-control nzErrorTip="Please input your username!">
        <nz-input-group nzPrefixIcon="user">
          <input type="text" nz-input formControlName="username" placeholder="Username" />
        </nz-input-group>
      </nz-form-control>
    </nz-form-item>
    <nz-form-item>
      <nz-form-control nzErrorTip="Please input your Password!">
        <nz-input-group nzPrefixIcon="lock">
          <input type="password" nz-input formControlName="password" placeholder="Password" />
        </nz-input-group>
      </nz-form-control>
    </nz-form-item>
    <button nz-button class="login-form-button login-form-margin" [nzType]="'primary'">Log in</button>
  </form>
</div>
